I'm sorry, they're booked up for 19:45. Will another time do?
Yes, I would like to book for 18:45. Please let me know the reference number when you have it available.
restaurant-area restaurant-day restaurant-name restaurant-people restaurant-pricerange restaurant-time
restaurant-area restaurant-day restaurant-name restaurant-people restaurant-pricerange restaurant-time
restaurant-area restaurant-day restaurant-name restaurant-people restaurant-pricerange restaurant-time
restaurant-area restaurant-day restaurant-name restaurant-people restaurant-pricerange restaurant-time